A zoologist is a scientist who studies animals. While most of us might watch a squirrel gathering acorns or wonder why cats purr, zoologists spend their careers investigating these questions professionally. They observe animal behavior, study how animals' bodies work, figure out how different species survive in their habitats, and work to protect endangered animals.

Some zoologists specialize in particular groups: a herpetologist studies reptiles and amphibians, a marine biologist studies ocean life, and an ornithologist studies birds. Others might focus on animal behavior, like Jane Goodall, who spent decades living among chimpanzees in Africa to understand how they communicate and live together. Zoologists who work in zoos help care for animals and design better habitats. Wildlife zoologists might track wolves in Yellowstone or study how climate change affects penguin colonies in Antarctica.

Becoming a zoologist requires years of study in biology and related sciences, but it starts with simple curiosity about the animal world.